1640390078

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{720101}}^1$

素因数の和:720187

約数の個数: 16

約数和(自身を含む): 2644214544

約数和(自身を除く): 1003824466

約数列:

[1, 2, 17, 34, 67, 134, 1139, 2278, 720101, 1440202, 12241717, 24483434, 48246767, 96493534, 820195039, 1640390078]

約数ペア:

[(1, 1640390078), (2, 820195039), (17, 96493534), (34, 48246767), (67, 24483434), (134, 12241717), (1139, 1440202), (2278, 720101)]